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to develop elrctronic database from manual forms
explain the steps for reduction of er model into relational model?
what is Mapping Constraints? with examples
What is relationship? Give examples A relationship is an association between several entities. Example: A depositor relationship associates a customer with every account tha
Determine the minimal set of functional dependencies for the following data. This table is part of the OHSU database of extracurricular activities and tracks the DMICE band's co
Which database level is closest to the users? External database level is closest to the users.
I have a small project that contains 3 deliverable s. I have done the first one and I would like you to help me with second one
UNION If R1 and R2 are two union compatible relations then R3 = R1 ∪ R2 is the relation having tuples that are either in R1 or in R2 or in both. In case, R3 will have tuples
In E-R diagram how generalization is represented? in E-R diagram generalization is represented by Triangle shape.
Relational Algebra is a set of basic operations used to influence the data in relational model. These operations allow the user to specify basic retrieval request. The result of re
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